Average Fast Neutron Radiative Capture Cross Sections for Fission Products and for Isotopes of Rare Earth Elements

Abstract

Average neutron capture cross sections from 5 to 400 keV for isotopes ¹⁰³Rh ¹³³Cs, ^147,152Sm, ^151,153Eu, ^natEu and from 10 to keV for isotopes ^{160,161,162,163,164}Dy, ^natDy, ^{170,171,172,173,176}Yb, ^natYb, ^{176,177,178,179,180}Hf, ^natHf, ^158,160Gd, ¹⁵⁹Tb, ¹⁶⁵Ho, ¹⁷⁵Lu, ¹⁸¹Ta, ¹⁸⁷Os have been measured by time-of-flight method at the pulsed, electrostatic accelerator EG-1 of Institute of Physics and Power Engineering. The experimental data were analyzed in the framework of statistical theory of nuclear reactions and new results were obtained for neutron and radiative strength functions for s-, p- and d-neutrons.